HATS-39b, HATS-40b, HATS-41b, and HATS-42b: three inflated hot Jupiters and a super-Jupiter transiting F stars

Bento, J. and Hartman, J. D. and Bakos, G. A. and Bhatti, W. and Csubry, Z. and Penev, K. and Bayliss, D. and de Val-Borro, M. and Zhou, G. ORCID: https://orcid.org/0000-0002-4891-3517 and Brahm, R. and Espinoza, N. and Rabus, M. and Jordan, A. and Suc, V. and Ciceri, S. and Sarkis, P. and Henning, T. and Mancini, L. and Tinney, C. G. and Wright, D. J. and Durkan, S. and Tan, T. G. and Lazar, J. and Papp, I. and Sari, P. (2018) HATS-39b, HATS-40b, HATS-41b, and HATS-42b: three inflated hot Jupiters and a super-Jupiter transiting F stars. Monthly Notices of the Royal Astronomical Society, 477 (3). pp. 3406-3423. ISSN 0035-8711

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We report the discovery of four transiting hot Jupiters from the HATSouth survey: HATS39b, HATS-40b, HATS-41b, and HATS-42b. These discoveries add to the growing number of transiting planets orbiting moderately bright (12.5 less than or similar to V less than or similar to 13.7) F dwarf stars on short (2-5 d) periods. The planets have similar radii, ranging from 1.33(+0.29) (-0.20) RJ for HATS- 41b to 1.58(+0.16) (-0.12) RJ for HATS-40b. Their masses and bulk densities, however, span more than an order of magnitude. HATS-39b has a mass of 0.63 +/- 0.13M(J), and an inflated radius of 1.57 +/- 0.12 R-J, making it a good target for future transmission spectroscopic studies. HATS41b is a very massive 9.7 +/- 1.6M(J) planet and one of only a few hot Jupiters found to date with a mass over 5 M-J. This planet orbits the highest metallicity star ([Fe/H] = 0.470 +/- 0.010) known to host a transiting planet and is also likely on an eccentric orbit. The highmass, coupled with a relatively young age (1.34(+0.31) (-0.51) Gyr) for the host star, is a factor that may explain why this planet's orbit has not yet circularized.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 02 Sep 2019 05:28
Last Modified: 10 Sep 2019 04:05
Uncontrolled Keywords: stars, photometric, spectroscopic, HATS-39, HATS-40, HATS-41, HATS-42, GSC 6550-00341, GSC 6533-01514, GSC 6530-01596, GSC 7107-03973, planetary systems
Fields of Research (2008): 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems
Identification Number or DOI: https://doi.org/10.1093/mnras/sty726
URI: http://eprints.usq.edu.au/id/eprint/36369

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